EP0714825A1 - Stabilisierungsmittel für Fahrrad-Vorderradantrieb - Google Patents

Stabilisierungsmittel für Fahrrad-Vorderradantrieb Download PDF

Info

Publication number
EP0714825A1
EP0714825A1 EP94308771A EP94308771A EP0714825A1 EP 0714825 A1 EP0714825 A1 EP 0714825A1 EP 94308771 A EP94308771 A EP 94308771A EP 94308771 A EP94308771 A EP 94308771A EP 0714825 A1 EP0714825 A1 EP 0714825A1
Authority
EP
European Patent Office
Prior art keywords
front wheel
rider
hand crank
bicycle
stabilizer bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94308771A
Other languages
English (en)
French (fr)
Inventor
James J. Ehrbar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP94308771A priority Critical patent/EP0714825A1/de
Publication of EP0714825A1 publication Critical patent/EP0714825A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/12—Rider propulsion of wheeled vehicles operated by both hand and foot power

Definitions

  • This invention relates generally to bicycles and more specifically to bicycles that include dual drive mechanisms that enable the rider to selectively apply driving power to the rear wheel by way of conventional foot pedals and to the front wheel by way of hand pedals.
  • the present invention provides a front wheel drive bicycle comprising a main frame; a rear wheel rotatably coupled to the main frame; a front wheel frame journaled to the main frame for steering the bicycle; a front wheel rotatably coupled to the front wheel frame; a hand crank drive mechanism coupled to the front wheel frame and to the front wheel for enabling the rider to apply driving power to the front wheel; and a stabilizer bar connected to the front wheel frame and extending rearward from the hand crank drive mechanism, the stabilizer bar having a chest saddle adjustably mounted at a distal end thereof for receiving the force of the rider's upper body to thereby maintain forward alignment of the front wheel while the hand crank drive mechanism is being operated by the rider.
  • a bicycle as set forth in the last preceding paragraph may further comprise adjustment means for adjusting the length of the stabilizer bar to thereby move the chest saddle forward or backward.
  • a bicycle as set forth in either one of the last two immediately preceding paragraphs may further comprise handlebar means adjustably positioned intermediate the length of the stabilizer bar for gripping by a rider when the hand crank drive mechanism is not being operated.
  • a bicycle as set forth in any one of the last three immediately preceding paragraphs may further comprise brake means coupled to the front wheel and brake control means, coupled to the handlebar means, for actuation by the rider.
  • a bicycle as set forth in any one of the last four immediately preceding paragraphs may further comprise adjustment means for adjusting the angle at which the stabilizer bar extends rearward from the hand crank drive mechanism.
  • a bicycle as set forth in any one of the last five immediately preceding paragraphs may further comprise pedal drive means for driving the rear wheel.
  • the present invention further provides apparatus for converting a rear wheel drive bicycle to a bicycle having front wheel and rear wheel drive whereby motive power can be applied to the front wheel when desired in addition to or as a substitute for the rear wheel drive, the apparatus comprising a hand crank drive mechanism couplable to the front wheel frame and to the front wheel for enabling the rider to apply driving power to the front wheel; and a stabiliser bar which can be connected to the front wheel frame and extending rearward from the hand crank drive mechanism, the stabiliser bar having a chest saddle adjustably mounted at a distal end thereof for receiving the force of the rider's upper body thereby to maintain forward alignment of the front wheel while the hand crank drive mechanism is being operated by the rider.
  • the illustrated preferred embodiment of the present invention provides a stabilizer bar attached to a hand crank mechanism frame, the stabilizer bar including a chest saddle against which the rider positions the chest area of his upper body during operation of the front wheel hand crank mechanism.
  • the force applied by the rider's upper body against the chest saddle acts to maintain forward alignment of the front wheel of the bicycle to thereby greatly improve the stability of the bicycle.
  • the stabilizer bar and chest saddle combination provides a resistance against which the rider works while operating the front wheel hand crank mechanism.
  • Figure 1 is a pictorial diagram of a dual drive bicycle according to the present invention.
  • FIG 2 is a detailed pictorial diagram of the front wheel hand crank mechanism, including the stabilizer bar and chest saddle, of the dual drive bicycle illustrated in Figure 1.
  • a dual drive bicycle 10 that includes a conventional foot pedal rear wheel drive mechanism.
  • a similar drive mechanism is provided to enable the rider to also apply driving power to the front wheel of the bicycle through use of his or her arms and hands.
  • the front wheel drive mechanism includes a conventional chain drive sprocket 12 driven by a hand crank mechanism that includes left and right crank handles 16 and 18 respectively. Left and right crank handles 16 , 18 are preferably closely spaced laterally, while maintaining clearance from the bicycle frame, to thereby minimize the twisting force produced during operation of the hand crank mechanism.
  • Chain drive sprocket 12 conventionally couples a drive chain 13 to the front wheel of bicycle 10 , either directly or through a conventional gear selection derailleur mechanism.
  • the hand crank mechanism includes a conventional bearing frame 20 that is attached to the front wheel steering column 22 of bicycle 10 . It is important to position the hand crank mechanism such that the centerline of rotation of crank handles 16 , 18 is in close proximity to the centerline of the front wheel steering column 22 to thereby minimize the transfer of any twisting force resulting from operation of the hand crank mechanism to the front wheel steering column 22 .
  • a stabilizer bar 24 is attached to the hand crank mechanism and extends rearward therefrom.
  • a chest saddle 26 is attached to the rearward end of stabilizer bar 24 .
  • a conventional thumbwheel adjustment means 28 permits upward and downward pivotal adjustment of stabilizer bar 24 .
  • Similar adjustment means 30 and 32 allow chest saddle 26 to be turned, as well as either retracted or extended to accommodate the preferred position of the rider.
  • a pair of adjustable handlebars 34 , 36 are positioned intermediate the length of stabilizer bar 24 for use by the rider when the hand crank mechanism is not being used. Handlebars 34 , 36 may be adjusted to be closer to or further from the rider by sliding them along stabilizer bar 24 .
  • Brake controls 38 , 40 are associated with handlebars 34 , 36 for conventionally controlling front and rear wheel calliper brakes. Alternatively, a conventional coaster brake may be employed.
  • the front and rear wheel drives for bicycle 10 may be any combination of conventional fixed or multiple speed gear selection drives.
  • the rider of the dual drive bicycle 10 of the present invention leans forward so that the chest area of his upper body is forced against chest saddle 26 during the time that the rider is using his or her arms and hands to operate crank handles 16 , 18 to apply driving power to the front wheel of bicycle 10 .
  • the force of the rider's upper body against chest saddle 26 maintains forward alignment of the front wheel of bicycle 10 and minimizes the transfer of any twisting motion from the hand crank mechanism to the front wheel, thereby greatly improving the stability of bicycle 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
EP94308771A 1994-11-28 1994-11-28 Stabilisierungsmittel für Fahrrad-Vorderradantrieb Withdrawn EP0714825A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94308771A EP0714825A1 (de) 1994-11-28 1994-11-28 Stabilisierungsmittel für Fahrrad-Vorderradantrieb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94308771A EP0714825A1 (de) 1994-11-28 1994-11-28 Stabilisierungsmittel für Fahrrad-Vorderradantrieb

Publications (1)

Publication Number Publication Date
EP0714825A1 true EP0714825A1 (de) 1996-06-05

Family

ID=8217923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94308771A Withdrawn EP0714825A1 (de) 1994-11-28 1994-11-28 Stabilisierungsmittel für Fahrrad-Vorderradantrieb

Country Status (1)

Country Link
EP (1) EP0714825A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632519A1 (de) * 1996-08-13 1998-02-19 Joerg Wendebourg Fahrrad mit Handkurbel- und Fußkurbelantrieb und Brutstütze
EP0855336A1 (de) 1997-01-23 1998-07-29 Claudio Roberto Suardi Fahrrad mit Zweiradantrieb
WO2009072140A1 (en) * 2007-12-03 2009-06-11 Shruti Mishra A bicycle, propelled manually, with facilities for both rear and front wheel propulsion
WO2011072359A1 (pt) * 2009-12-15 2011-06-23 Miglorancia Felipe Rudiuk Disposição introduzida em bicicleta de movimento combinado

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132019A1 (de) * 1981-08-13 1983-03-03 Werner 8901 Neusäss Sterzik Fahrrad mit fuss- und handantrieb mit schwenkbarem lenker am drehbaren vorderrad-gabelrohr
FR2699884A1 (fr) * 1992-12-31 1994-07-01 Saliba Pierre Vélo à traction intégrale.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132019A1 (de) * 1981-08-13 1983-03-03 Werner 8901 Neusäss Sterzik Fahrrad mit fuss- und handantrieb mit schwenkbarem lenker am drehbaren vorderrad-gabelrohr
FR2699884A1 (fr) * 1992-12-31 1994-07-01 Saliba Pierre Vélo à traction intégrale.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632519A1 (de) * 1996-08-13 1998-02-19 Joerg Wendebourg Fahrrad mit Handkurbel- und Fußkurbelantrieb und Brutstütze
DE19632519B4 (de) * 1996-08-13 2005-09-22 Wendebourg, Jörg Fahrrad mit Hand- und Fußkurbelantrieb und Bruststütze
EP0855336A1 (de) 1997-01-23 1998-07-29 Claudio Roberto Suardi Fahrrad mit Zweiradantrieb
WO2009072140A1 (en) * 2007-12-03 2009-06-11 Shruti Mishra A bicycle, propelled manually, with facilities for both rear and front wheel propulsion
WO2011072359A1 (pt) * 2009-12-15 2011-06-23 Miglorancia Felipe Rudiuk Disposição introduzida em bicicleta de movimento combinado

Similar Documents

Publication Publication Date Title
US4925200A (en) Tricycle drive mechanism
US7111860B1 (en) Treadle scooter
US4632414A (en) Land vehicle propelled by simulated rowing motion
US5853062A (en) Recumbent electrically power-assisted bicycle
US7413206B2 (en) Extra hand powered bicycle
US4508358A (en) Apparatus for use as physical exerciser and means of locomotion
US9067637B2 (en) Adjustable folding handlebar for human powered vehicles
US5385359A (en) Stabilization device for front wheel drive bicycles
US20070228687A1 (en) Bicycle propulsion mechanism
US4541647A (en) Recumbent bicycle
US4548420A (en) Reciprocating and oscillating drive mechanism
US20030001350A1 (en) Exercise scooter
EP0281567B1 (de) Fahrradbremssteuerungsmittel, insbesondere für rennräder
US20010042968A1 (en) Steerage of a vehicle
US5290054A (en) Linear drive recumbent cycle
US6105985A (en) Hand and foot powered bicycle
US5201243A (en) Handlebar assembly
WO2008143541A2 (en) The panther front and rear wheel drive bicycle
US6193253B1 (en) Manual operating assembly for a vehicle
US5816598A (en) Two-wheel drive hand and foot powered bicycle
US4733880A (en) Ridable arm exercise bicycle
JPH0656062A (ja) 二輪車
US4653766A (en) Device resulting from the combination of a scooter with a bicycle operated by the rider's weight
US5372374A (en) Lever device for equalizing bicycle workout
EP0714825A1 (de) Stabilisierungsmittel für Fahrrad-Vorderradantrieb

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19961206